Harrow.



D. G. SMITH.

HARROW.

APPLICATION TILED MAY 17,1912.

1,042,493; Patented 001;. 29, 1912..

2 SHEET$SHEET 1.

ATTO R N EY D. 0. SMITH.

HARROW.

APPLICATION FILED MAY 17,1912.

1,042,493,, Patented Oct. 29, 1912.

2 SHEET S-SHEET 2.

0 4 4 7 4 41 4 t 48 /Zfl' Z; 46 2:

g Z 2,9 33 if 0 1 INVENTOR WITNESSES a if 7 ATTORNEY DAVID 0. SMITH, OFBEE BRANCH, ARKANSAS.

HARROW.

Specification of Letters Iatent.

Patented Uct. 29,1912.

Application filed May 17, 1912. Serial No. 698,049.

Branch, in the county of Van Buren and State of Arkansas, have inventeda new and useful Harrow, of which the following is a specification.

The invention relates to improvements in harrows.

The object of the presentinvention is to improve the construction ofharrows, and to provide a simple, practical and comparativelyinexpensive harrow, capable of being readily adjusted to vary its widthto suit the conditions or requirements, and adapted to be easilyoperated to raise either side to clear a stump-or. otherc obstructionwithout interfering with the other side.

A further object of the invention is to provide an adjustable harrow ofthis character, adapted to permit either side to drop below. the normalhorizontal plane of the other side in order to harrow the soil in lowplaces. j

With these and other objects in view, the

invention consists in the construction. and.

novel combination of parts hereinafter fully described, illustrated inthe-accompanying drawings, and pointed out in the claims heretoappended; it beingun'derstood that various changes in the form,-,proportion, size and minor details of construction,- with in the scopeof the claims, maybe resorted to without departing from the spirit orsacrificing any ofthe advantages of the invention. Q

In the drawingsz-Figure I 1 isa., .'plan view of a harrow, constructedin accordance with this invention. Fig. 2 is a lon 'tudinal sectionalview on the line 2-'2 -o'f ig. 1. Fig. 3 is a transverse sectional viewon the line 33 of Fig. 1. Fig. 4 is a similar view on the line M of Fig.1, one of the-sides'of the harrow being swung upwardly.

Like numerals of reference designate corresponding parts in all thefigures of the drawings. 4

In the accompanying drawings in which is illustrated the preferredembodiment of the invention, 1 designates a central longitudi- 1131 mainbeam having its front end tapered and extended in advance of a pair oflongitudinal beams 2 and equipped w1th a clev1s 3 'for the attachment ofthe draft animal or animals. The longitudinal beams 2, which are locatedat opposite sldes 0f the central that the harrow may main beam 1, arehinged to the same by front and rear hinges 3 and 4, adapted to swingupwardly and downwardly to raise or lower either side of the beam. Thefront hinge comprises a central leaf 5 secured to the upper edge of themain beam 1 and provided at the side faces thereof with eys forthe'reception of pintle rods 6, which also pass through eyes of sideleaves 7, secured to the upper edges of the hinged longitudinal beams 2.The rear hinge also consists of central and side leaves, provided withregistering eyes locatedat the sidevfaces-of the main beam 1 andconnected by pintle rods 8. The central beam is tapered from its upperedge to its lower edge and presents inclined side faces 9 to the hingedlongitudinal beams 2, which are tapered from their upper edges to theirlower edges to provide inner inclined side faces 10. This arrangementpermits either side of the harrdw to drop below a horizontal position inorder operate properly on the soil in low' places. I

The hinged longitudinal beams are provided at opposite sides with spacedupper and lower laterally extending ears 11 and 12 for the reception ofvertical pintles 13 and 14., which pass through vertical eyes oropenings at the front ends of laterally adjustable beams 15 and 16,arranged in'pairs and located at opposite sides of the hingedlongitudinal bars. The laterally extending ears I1"ar'e"formed integralwith the side leaves 7, and the other ears 12 consist of "plates securedto the upper and lower edges of the beams2. The front ends of thelaterally adjustable beams 15 and 16 are tapered, and the eyes oropenings of the said beams 15 and 16 are'formed by metallic straps 17,bent at an intermediate point to form two sides arranged at an angle toeach other andsecured to the side faces of the tapered front ends of thelaterally adjustable beams. I

The pivots of the laterally adjustable beams space the front endsthereof and the said beams are also spaced at their rear portions byupper and lower transverse connecting bars 18, fitted against the upperand loweredges of the beams 15 and 16 and secured to the same byvertical pivots 19 and 20, which extend entirely through the beams 15and 16 'and pierce the terminals of the bars 18. The pivots of the bars18 permit the latter to adjust themselves to the position of the beams15 and 16 in the adjustment thereof. s The laterally adjustable sidebeams are also connected with the rear portions of the 5 hingedlongitudinal beams by upper and lower angularly related links 21 and 22,lo-

cated at the upper and lower edges of the said beams and arranged inpairs, the members of each pair being connected together by averticalpivot 23, which extends through the contiguous terminals of the upperand lower links. The links 21 are secured to the hinged longitudinalbeams by pivots 24, and they extend forwardly and outwardly therefrom.The other links 22 are pivoted at their. outer ends to the laterallyadjustable side beams 16 by the said pivots 20, and they extendforwardly and inwardly from the said beams 16, the 20 piw t 23 beingpreferably located in advance of a line intersecting the pivots 20 and24. By this construction the resistance to the forward movement of thelaterally adjustable beam when the harrow is drawn 25 forwardly willoperate to swing the. same inwardly toward the hinged beams, and thelaterally adjustable beams are forced outwardly by the hinged beams bydrawing the pivots 23 rearwardly.

The vertical pivots 23 carry spacing sleeves 25 provided with rearwardlyprojecting ears 26, and connected with an up right operating lever 27 byrods 28 and 29. The rods 28 and 29 are arranged in pairs and formflexible connections, which diverge forwardly from the upright lever 27,as clearly illustrated in Fig. 1 0f the drawings. The rods are providedat their connected ends-with eyes 30, which are linked into each other;the rear rods 28 have eyes, which are linked into a ring 31, whichpasses through a perforation of an ear 32 of the lever. rods 29 areprovided with eyes 33, which are linked into the perforations of theears 26. The lever 27 is pivoted at its lower end to the main beam atone of the side faces thereof by a pin or bolt 34, and it extendsupwardly through a slot 35 ofa '50 bracket 36, secured to the upper edgeof the central beam 1 at the rear end thereof and provided with atoothed segment 37 adaptedto be eng ed by a spring actuated dog ordetent 38 o the operating lever 27. j The dog or detent 38, which iscontrolled'by a latch lever of the ordinary construction, locks thebeams in their adjustment.

. The central and hinged longitudinal beams and the laterally adjustableside beams are equipped with suitable barrow teeth 39, which may beconstructed in any 1 suitable mannenand arranged at any desiredintervals. The teeth of the laterally adjustable side beams 16 harrowbetween the teeth of the side beams 15, and the teeth The front ends ofthe frontof the central and hinged longitudinal bars harrow centrallybetween the side beams. The adjustment of the side beams varies thewidth of the harrow and the effective interval between the teeth ofthose beams.

The central beam 1 is equipped at its rear portion with a verticalstandard 40, provided at the lower end with attaching portions 41, whichare suitably secured-to the beam 1 at o posite sides thereof. The upperend of the standard is provided with a transverse bifurcation in whichis'centrally pivoted a transverse, lever 42, extending from oppositesides of the standard and connected at its terminals by chains 43, orother suitable flexible connections with the outer portions of arms 44of the hinged longitudinal beams. The arms 44, which projecthorizontally from the outer 'side faces of the beams 2, have innerattaching portions 45, and they also form stops for limiting the inwardmovement of the laterally extending bars so as to space thesame from thelongitudinal beams 2 when at the limit of their inward movement. Thetransverse lever is adapted to be oscillated, as illustrated in Fig. 4of the drawings, to tilt the hinged beam and the laterally extendingside bars to elevate either side of the harrow for enabling the same toclear a stump or other obstruction. The transverse lever is oscillatedby means of a pair of longitudinally operating levers 46, extendingbeneath the transverse bar and provided at points intermediate of theirends with eyes 47, which are linked into slots 48 of the transverselever. The operating levers have relatively long rear arms andrelatively short front arms, which are connected by chains 49, or othersuitable flexible connections with the hinged side beams. The hingedlongitudinal beams are provided in advance of the laterally extendingarms with eyes 50 to receive the lower ends of the chains 49. When therear handle portion of the operating lever 46 at one' side of thestandard is depressed the adjacent arm of the transverse lever will beswung downwardly, and the other arm of the trans; verse lever will beswung upwardly and will carry with it the side of the harrow to which itis connected. By this construction and arrangement, the operating leverat one side of the standard" is adapted to raise and lower the oppositeside of the harrow. The standardis supported by an inclined brace 51,located in advance of the standard and secured at its upper end to thesame and at its lower end to the central beam in advance of the innerends of the links 21.

What is claimed is 1. A harrow comprising a main central beam,longitudinal beams located at opposite sides'of and hinged to thecentral beam and arranged to swing upwardly and downstantially the samehorizontal plane as the wardly, a transverse lever carried by thecentral beam and fulcrumed intermediate of its ends to form oppositearms, means for connecting the arms of the transverselever with thelongitudinal beams, and means for operating the transverse lever forraising and lowering either of the said longitudinal beams.

2. A harrow including a main 'longitudi- .ial beam tapered downwardlytoward its lower edge and presenting inclined side faces, longitudinalbeams hinged at their upper edges to the upper edges of the main beamand having inclined inner side faces, and side beams connected with-andcarried by the hinged longitudinal beams, the said inclined facespermitting the side beams to drop below a horizontal position.

3. A harrow including a central portion, laterally adjustable side beamspivotally connected with the central portion, angularly related linksarranged in pairs and pivotally connected with the side beams and thecentral portion of the harrow and provided at their adjacent ends withvertical pivots, sleeves mounted on therlatter and provided with ears,an operating lever pivotally mounted at the central portion of theharrow, and connections extending from the lever to the ears of the saidsleeves.

4. A harrow including hinged longitudinal beams arranged to swingupwardly and downwardly, laterally adjustable side beams pivotallyconnected with the hinged longitudinal beams, arms extending laterallyfrom the hinged beams and forming stops for limiting the inward movementof the side beams, and operating means connected with the arms forraising the said beams.

5. A harrow including a central main beam, longitudinal beams arrangedin subcentral main beam, hinges arranged at the' upperedges of thecentral and longitudinal beams and connecting the same, harrow teethcarried by the central and longitudinal beams, and oper ting mechanismfor v raising and lowering t e longitudinal beams.

6. A harrow including a central vmain b eam, longitudinal beams hingedto the central beam at opposite sides thereof and arranged to swingupwardly and downwardly,

side beams carried by the hinged beams, av

standard mounted on the central beam, a transverse lever fulcrumed onthe standard and extending from opposite sides thereof, means forconnecting the transverse lever with the hinged beams, and operatinglevers disposed longitudinally of the harrow and connected with thetransverse lever and adapted to tilt the same for raising and loweringthe hinged and side beams.

7 A harrow including a central main beam, longitudinal beams hinged tothe central beams at opposite sides thereof and. ar-

ranged to swing upwardly and downwardly,

side beams carried by. the hinged beams, a standard mounted on thecentral beam, arms extending laterally from the side beams, a

transverse lever, fulcrumed on arid projecting from opposite sides ofthe standard,

means for connecting the transverse lever with the laterally projectingarms, and

means for oscillating the transverse lever to V raise and lowerthehinged and side beams.

8. A harrow including 'a central main beam, longitudinal beams hinged tothe central beam at opposite sides thereof and arrange to swing upwardlyand downwardly, side beams carried-by the hinged beams, a standardmounted on the central beam, arms extending laterally from the sidebeams, a transverse lever fulcrumed on and projecting from oppositesides of the standard, means for connecting the transverse lever. withthe laterally projecting arms, and operating levers located at oppositesides of the standard and connected at an intermediate point with thetransverse lever and at their front terminals with the hinged beams.

In testimony, that I claim the foregoing as my own, I have heretoatfixed my signa- J. Y. CmLDREss, H. A. MGDOWON.

